Calculating calendar



Aug. 18, 1953 Filed June 6, 1950 Fig.

O. F. BRYANT CALCULATING CALENDAR Fig. 2

2 Sheets-Sheet l Otis Frank Bryant INVENTOR.

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0. F. BRYANT Aug. 18, 1953 CALCULATING CALENDAR 2 Sheets-Sheet 2 FiledJune 6, 1950 Otis Frank Bryan! INVENTOR.

9 BY an FM? Patented Aug. 18, 1953 UNITED STATES PATENT OFFICE Thisinvention comprises novel and useful improvements in a calculatingcalendar and more specifically pertains to a rotatable dial comp-utingdevice specifically adapted for estimating and computing wages,compensation and the like, accruing over various periods of time.

The primary object of this invention is to provide an improvedcalculating device for quickly and easily determining the amountsaccruing over various periods of time at various base rates ofcompensation.

A further object of the invention is to provide an improved calculatingdevice in conformity with the foregoing object wherein the accruedcompensation at different base rates may be easily and accuratelycalculated for considerable periods of time and wherein adjustments forleap years are readily made.

These, together with various ancillary objects and features of theinvention which will later become apparent as the following descriptionproceeds, are attained by the present invention, a preferred embodimentof which has been illustrated by way of example only in the accompanyingdrawings, wllel'fiinj Figure 1 is a top plan view of one embodiment ofthe invention in conformity with the principles thereof;

Figure 2 is -a vertical transverse sectional view taken substantiallyupon the plane of section line 2-2 of Figure l and illustrating themanner of attaching the rotatable dials to .each other; and

Figure 3 is a fragmentary enlarged portion of a part of the indiciadials of Figure 1.

Referring now more specifically to the accompanying drawings, whereinlike numerals designate similar parts throughout the several views,attention is directed first to Figures 1 and 2 wherein it will be seenthat the device may conveniently comprise a plurality of concentricsubstantially annular dials which are axially and pivotally secured toeach other for relative rotation, these dials conveniently comprisingdisks l0, 12, M and I6 which are progressively decreasing in diameterand which are axially apertured to receive a tubular bushing or sleevel3 through which extends a fastening bolt or the like, having a headedportion 20 disposed on the outer side of the largest disk l0, and havinga resilient washer 22 secured as by a nut 24 to the outer side of thesmallest disk.

The marginal portion of the outermost disk I0 is divided into acircumferential zone having a plurality of equi-distantly spacedgraduations 2 26, 365 being provided although where the disk is intendedsolely for use in periods involving leap years, 366 divisions would beemployed. It should be here noted that if desired, one side of the diskl0 and of the other disks may be provided with indicia for a regularyear, and the other side for a leap year, so that the disks may bereversed to adapt the device to computing time intervals within a yearof either length.

"In the divisions of the disk 40 defined by the graduations '26, it ispreferred to place indicia designating the successive days of the weekthroughout the year, as shown at 28. However, since the last day of theyear does not end upon the adjacent day of the week to the first day ofthe year, the sequence of weeks has been started with Monday, at l0, thelast Sunday for a regular year being shown at 32 and 365th day blank at3.4. 'In a leap year of 366 days there will of course be two blankspaces or divisions between the first day of the first week and the lastday of the last week.

The edge of the second disk 12 is preferably either provided withserrations 36, as shown in Figures 1 and 3 or is printed to simulatesuch serrations, and these serrations are evenly spaced, either 365 or366 in accordance with the use to which the device is to be put, so thateach serration will register with the corresponding one of the dailyspaces'ZG of the outer disk 10. The ,face of the second disk, that is,the annular rim of the same, is provided with radial divisionsregistrable with the divisions '26, and the points of each .of theserrations are disposed at the .outer end of the segment of the disk andare positioned between each pair of consecutive div si ns 2,6 of the d 0h the iv n i the disks l0 and 12 are aligned.

The margin of the disks l4 and I6 are similarly serrated at 44 and 46and provided with radial division lines registrable with the lines 26.

However, the marginal area of disk M has the concentric spaces betweendivisions indexed as at 48 with the number of each day in a week, thenumber of each week in a year being denoted by a numeral 50 in the spacefor the seventh day of that week. However, the last few weeks of a yearare numbered backwards with negative concentric numerals, 52, in orderto facilitate ante-dating a period of computations.

The margin of the disk 16 is provided with two circumferentiallyextending zones 54 and 56 in which the spaces between the division lineshave indicia 58 and 60, respectively, representing the accruedcompensation at $20.00 per week 3 and $1.00 per week respectively foreach week of the period. Of course, other base rates could be employedas deemed expedient.

As will be readily apparent, the various radially spaced rings ofwedge-shaped portions could be provided with indicia corresponding indifferent rates of base pay.

The manner of utilizing the device is as follows. It is assumed that thecalculator is employed to compute workmans compensation forunemployement insurance, for which the apparatus illustrated isspecifically designed.

Let it be supposed that it is desired to determine the compensation fora workman who was idle from January 1 to February 3 and that the workmanis entitled to a base rate of $22.00 per week. The procedure is asfollows. The disks l2, l4, 18 are caused to register with each other,

so that the first day of the first week, indicia 48 s of disk [4 isregistered with the first day of the period, January 1 indicia 42 ofdisk I2. It will now be apparent that the end of the period, Feb. 3,coincides with 4 weeks and 6 days and disk [4 giving the extent of theperiod for which compensation has accrued.

Having placed the first division of zones 54 and 50 of disk It inregistry with the first day of disk M it will be seen that at the end ofthe accrual period there has accrued a compensation of $97.14 on a baserate of $20.00 per week, and $4.86 on a base rate of $1.00 per week.Therefore, for a rate of $22.00 per week the compensation due is $97.14plus 2 times $4.86 or $106.86.

The above example is calculated upon the premise that the unemploymentinsurance compention would not begin for 10 days, the disk M would beshifted so that the negative indicia 52 of 1 week and 3 days wouldregister with Jan. 1. The reading and calculation above described wouldthen be made as before.

The indicia 30 of the disk l0 would be employed when it was desired todetermine the day of the week upon which a period began and ended.

From the foregoing the construction and operation of the device will bereadily understood and further explanation is believed to beunnecessary.

However, since numerous modifications and changes will readily occur tothose skilled in the art after a consideration of the foregoingspecification and accompanying drawings, it is not desired to limit theinvention to the exact construction shown and described, but allsuitable modifications and equivalents may be resorted to, fallingwithin the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. A time calculator comprising a plurality of superposed disks ofprogressively varying diameter, a common fastener pivotally securingsaid disks in assembled and relatively rotatable relation, the margin ofsaid disks being divided into equal angular intervals the periphery ofthe largest disc being smooth and the peripheries of the other discsbeing serrated to provide teeth, the intervals of one disk beingregistrable with selected portions of the intervals of every other disk,the intervals upon the margin of the largest disk designating the daysof the week throughout the year and the intervals upon the margin of theadjacent disk designating the months and days of a year, the indiciaupon the margin of a disk interposed between the smallest disk and thedisk adjacent to the largest disk designating the days and weeks of anelapsed time interval.

2. A time calculator comprising a plurality of superposed disks ofprogressively varying diameter, a common fastener pivotally securingsaid disks in assembled and relatively rotatable relation, the margin ofsaid disks being divided into equal angular intervals the periphery ofthe largest disc being smooth and the peripheries of the other discsbeing serrated to provide teeth, the intervals of one disk beingregistrable with selected portions of the intervals of every other disk,the intervals upon the margin of the largest disk designating the daysof the week throughout the year and the intervals upon the margin of theadjacent disk designating the months and days of a year, the indiciaupon the margin of a disk interposed between the smallest disk and thedisk adjacent to the largest disk designating the days and weeks of anelapsed time interval, said last mentioned indicia includingdesignations for ante-dating a period of time, the teeth of said discsbeing positioned at such angular intervals as to provide a tooth foreach day interval.

OTIS FRANK BRYANT.

References Cited in the file of this patent UNITED STATES PATENTS NumberName I Date Re. 8,334 Kachelman July 16, 1878 986,416 Young Mar. 7, 19111,447,309 Johnson Mar. 6, 1923 1,495,805 Rooney May 27, 1924 2,404,709Hill July 23, 1946 FORETGN PATENTS Number Country Date 142,625 GreatBritain May 13, 1920

